Machine Tool Adapter for Thread-Less Tool Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing machine tool devices lack a simple and cost-effective method for securely attaching tools with thread-less interfaces to tool holders, limiting flexibility and increasing costs due to the need for multiple tool hubs and complex mounting processes.
Innovation Solution
A machine tool device with a positive locking unit that connects a driver unit and fastening unit in a rotationally fixed manner, using a flange and driver elements for torque transmission and axial locking, allowing tools without threads to be securely attached to tool holders with external threads, facilitating easy mounting and unmounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a tool with thread-less interface is used, then the tool can be attached to different tool holders, but the connection reliability is insufficient
Solution Approach 1:
The patent introduces a machine tool device as an intermediary component between the tool and the tool holder. This device includes a driver unit that interfaces with the tool's thread-less interface and a fastening unit that secures to the tool holder's external thread, thereby enabling reliable connection while maintaining versatility.
Solution Approach 2:
The machine tool device is divided into separate functional units: a driver unit for rotating connection to the tool and a fastening unit for axial fastening to the tool holder. This segmentation allows each unit to be optimized for its specific function while working together to provide both versatility and reliability.
2Adaptability or versatility
If multiple tool hubs are used for different tool holders, then compatibility is achieved, but the device complexity increases
Solution Approach 1:
The machine tool device is designed as a universal adapter that can interface with both the tool's thread-less interface and the tool holder's external thread. This single multi-functional device replaces the need for multiple specialized tool hubs, reducing complexity while maintaining broad compatibility.
3Reliability
If a complex mounting process is used, then secure attachment is achieved, but the ease of operation decreases
Solution Approach 1:
The fastening unit is designed to allow dynamic adjustment during the mounting process. The driver unit can be rotated to engage the fastening unit with the tool holder, and the flange can be positioned to contact the bearing surface, enabling secure attachment through a relatively simple rotational motion rather than a complex multi-step process.
Data Source
AI summary
A machine tool device, in particular a tool adapter, for connecting a tool, in particular a brush, to a tool holder of a machine tool, in particular an angle grinder, has at least one driver unit for a rotationally fixed connection to the tool and at least one fastening unit for axial fastening of the tool to the tool holder. The machine tool device has a positive locking unit, via which the driver unit and the fastening unit can be connected to one another in a rotationally fixed manner via a positive lock.